Research articles

Identification of phosphorus starvation tolerant soybean ( Glycine max ) germplasms

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  • 1.North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Agricultural University of Hebei, Baoding 071001, China; 2.Soybean Research Institute of Nanjing Agricultural University, National Center for Soybean Improvement, National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing 210095, China;

Published date: 05 Sep 2010

Abstract

In the present study, 156 soybean genotypes mainly from the Hebei growing-area were identified for their low phosphorus starvation tolerance. The results showed that the relative values (value of dry wt. in zero soil P/value of dry wt. in adequate soil P) of shoot dry weight and root dry weight of all soybean varieties, at the phosphorus concentration of 0 mmol·L−1 and 1.0 mmol·L−1 in supplied solution, offered a quick and reliable method to identify and classify genotypes for phosphorus starvation tolerance. We describe three classes: tolerant, moderate and sensitive P starvation groups which had 29, 59, and 68 cultivars, respectively. Eight varieties, Ji-dou11, Lü75, Hei-da-li, Zhong-huang15, Zhe98-14, Da-mao-jiao, Da-huang-dou and Zha-lai-te-qi were screened out for their high tolerance to phosphorus deficiency under zero soil phosphorus conditions. In addition, the relationships between soybean phosphorus starvation tolerance and seed phosphorus content, root morphology, rhizosphere acidification are also discussed.

Cite this article

Xihuan LI, Wensuo CHANG, Caiying ZHANG, Junyi GAI, . Identification of phosphorus starvation tolerant soybean ( Glycine max ) germplasms[J]. Frontiers of Agriculture in China, 2010 , 4(3) : 272 -279 . DOI: 10.1007/s11703-010-1009-7

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